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    • 1. 发明申请
    • Method and apparatus for anchoring a mine roof bolt
    • 锚定矿井屋顶螺栓的方法和装置
    • US20050123361A1
    • 2005-06-09
    • US10730670
    • 2003-12-08
    • Roy Robertson
    • Roy Robertson
    • E21D21/00E21D20/00
    • E21D21/008
    • An improved mine roof bolt is disclosed. The mine roof bolt comprises a bolt portion having a camming nut rigidly fixed to it and a threaded end and an expansion shell having a central threaded nut with wedge fingers extending from it. The expansion shell is threaded onto the threaded section of the bolt. Turning the bolt while it is in a hole causes the expansion shell to move along the bolt and brings the wedge fingers into contact with the camming nut, spreading the wedge fingers into contact with the hole sides. As the turning of the bolt continues, the relative movement of the camming nut and wedge fingers increases the wedging effect within the hole until the bolt is anchored in the hole. While turning of the bolt may serve to mix a catalytic adhesive, the adhesive is not needed to activate the mechanical anchoring mechanism of the mine roof bolt.
    • 公开了一种改进的矿顶螺栓。 矿顶螺栓包括具有刚性地固定到其上的凸轮螺母和螺纹端的螺栓部分,以及具有从其延伸的楔形指状件的中心螺母的膨胀壳。 膨胀壳螺纹拧到螺栓的螺纹部分上。 螺栓在孔中转动时,膨胀壳沿着螺栓移动,使楔形指与凸轮螺母接触,使楔形指与孔侧接触。 当螺栓的转动继续时,凸轮螺母和楔形手指的相对运动增加了孔内的楔形效应,直到螺栓锚定在孔中。 当螺栓的转动可以用于混合催化粘合剂时,不需要粘合剂来启动矿井屋顶螺栓的机械锚固机构。
    • 2. 发明申请
    • Mine roof bolt anchoring system and method
    • 矿顶锚杆锚固系统及方法
    • US20060018721A1
    • 2006-01-26
    • US11240325
    • 2005-09-30
    • Roy Robertson
    • Roy Robertson
    • E21D20/00E21D21/00
    • E21D21/008
    • An improved mine roof bolt is disclosed. The mine roof bolt comprises a bolt portion having a threaded end, a slidable camming nut, a stop, and an expansion shell having a central threaded nut with wedge fingers extending from it. The camming nut is fitted into the expansion shell which is threaded onto the threaded section of the bolt. Turning the bolt while it is in a hole causes the expansion shell to move along the bolt and carry the camming nut to the stop located on the bolt, and this causes the wedge fingers to engage with the camming nut, spreading the wedge fingers into contact with the hole sides. As the turning of the bolt continues, the relative movement of the camming nut and wedge fingers increases the wedging effect within the hole until the bolt is anchored in the hole. While turning of the bolt may serve to mix a catalytic adhesive, the adhesive is not needed to activate the mechanical anchoring mechanism of the mine roof bolt.
    • 公开了一种改进的矿顶螺栓。 矿井顶螺栓包括具有螺纹端的螺栓部分,可滑动的凸轮螺母,止动件和具有从其延伸的楔形指的中心螺母的膨胀壳。 凸轮螺母安装在膨胀壳中,螺栓拧到螺栓的螺纹部分上。 螺栓在孔中转动时,膨胀壳沿着螺栓移动,将凸轮螺母运送到位于螺栓上的止动件上,这使得楔形指状件与凸轮螺母啮合,使楔形指状物接触 与孔边。 当螺栓的转动继续时,凸轮螺母和楔形手指的相对运动增加了孔内的楔形效应,直到螺栓锚定在孔中。 当螺栓的转动可以用于混合催化粘合剂时,不需要粘合剂来启动矿井屋顶螺栓的机械锚固机构。